Nikaah & Marriage Issues

Q: Is it jaiz for someone to show others pictures of a baby scan (when baby is in the stomach, pictures are taken through ulstasound scan etc.)?

Q: If a person once used to commit some sexual sins but then he/she repented and now he/she does not fear to commit those sins again, will marriage be still obligatory for him/her? If he/she does not get married ever, will he/she be sinning?

Q: On the day of the wedding (Nikah), the bride's father will offer food for all the guests who visited the wedding at that time. The guests will be from both sides and that might be in large number i.e. 1000.

My question is, will the food offered by the bride's father to the grooms side haraam?

Q:

1. Is seeing porn movies a sin?

2. Kindly confirm the degree/level of this sin in Sharia? And punishment on this?

3. How we refrain from this curse in this social media era?

Q: I am currently working for my father whereby I am in a secluded office doing his book work. For this I earn a wage. My husband also earns a reasonable wage and my question is:

1. Should I, as the wife, pay for household necessities and groceries or is it the duty of my husband? Please bear in mind that my husband and I are newly married and I have not had the confidence to bring up money matters with him as yet.

2. How do I go about discussing this with him in a sensible manner?

Q: What is the ruling of a husband and wife showing affection to one another in public? Is there any harm if they hold hands, hug each other, or even kiss each other on the cheek and forehead in public?

Q: My mother breastfed her sisters daughter only once when she was ill and at that time my mother breastfed her daughter. Now we like each other and want to marry according to Islam. Is it permissible for us to marry? 

Q: My sister in law's genotype is AS and her fiance's is also AS. If she gets pregnant in the marriage, is it permissible to terminate a three weeks old pregnancy?

Q:

1. If a woman looks at the private parts of a man without lust, does it establish hurmat-e-musaaharat?

2. A woman looks at the private part of a man in a picture or an image and feels lust, but she does not know whose private part this is. She does not know with whom she has established hurmat-e-musaaharat. Now if she is about to marry a man, should she doubt that those private parts may be of her future father in law and the groom is haram for her to marry. As she does not know with whom she has established hurmat-e-musaharat, what should she do?

Q: If a girl acts as the wakeel in a marriage, is the marriage valid?